CN108663840A - Display device and preparation method thereof - Google Patents

Display device and preparation method thereof Download PDF

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Publication number
CN108663840A
CN108663840A CN201810394780.0A CN201810394780A CN108663840A CN 108663840 A CN108663840 A CN 108663840A CN 201810394780 A CN201810394780 A CN 201810394780A CN 108663840 A CN108663840 A CN 108663840A
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CN
China
Prior art keywords
display
plate
refractive index
substrate
glass
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CN201810394780.0A
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Chinese (zh)
Inventor
郑斌义
杨雁
吴玲
沈柏平
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厦门天马微电子有限公司
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Application filed by 厦门天马微电子有限公司 filed Critical 厦门天马微电子有限公司
Priority to CN201810394780.0A priority Critical patent/CN108663840A/en
Publication of CN108663840A publication Critical patent/CN108663840A/en

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    • GPHYSICS
    • G02OPTICS
    • G02FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/133305Flexible substrates, e.g. plastics, organic film
    • G02F1/133331

Abstract

The invention discloses a kind of display devices and preparation method thereof, belong to display technology field, including:Curved face display panel and the glass cover-plate to fit with curved face display panel;Glass cover-plate includes glass substrate and refracting layer, and refracting layer is located at glass cover-plate close to the side of curved face display panel;There is the first bending region in display device.The curvature R1 of glass substrate in first bending region is minimum, as R1<Rx, the first refractive index for being bent the glass substrate in region is Nj1.In order to avoid in display device, the luminance difference in the first bending region and other regions, glass cover-plate refractive index in the first bending region is Ng1, refractive index is N in other regionsgx, N is setg1<Nj1, Ng1< Ngx.To reduce the luminance difference in the first bending region and other regions in display device, the homogeneity of the brightness of display device is promoted, display quality is improved.

Description

Display device and preparation method thereof

Technical field

The present invention relates to display technology fields, more particularly, to a kind of display device and preparation method thereof.

Background technology

As shown in Figure 1, in the curved-surface display device 01 that the prior art provides, curved face display panel 02 and glass cover-plate 03 are equal It is larger by the refractive index and other area differentiations for being bent region A with bending region A, light L0 so that bending region A is aobvious Different from the display brightness in other regions during showing, display quality is poor.

Invention content

In view of this, the present invention provides a kind of display devices and preparation method thereof.

The present invention provides a kind of display devices, including:It curved face display panel and fits with curved face display panel Glass cover-plate;Glass cover-plate includes glass substrate and refracting layer, and refracting layer is located at glass cover-plate close to the one of curved face display panel Side;Display device includes the first bending region, and the curvature of the glass substrate in the first bending region is first curvature, glass substrate Except the curvature of the overseas any region of the first buckled zone is Rx, R1 < Rx;The refractive index of glass substrate in first bending region For the first glass substrate refractive index Nj1, the first refractive index for being bent the glass cover-plate in region is the first glass cover-plate refractive index Ng1, wherein Ng1<Nj1;Glass cover-plate is N except the refractive index of the overseas any region of the first buckled zonegx, Ng1< Ngx

The present invention also provides a kind of production methods of display device, for making display device provided by the invention.

Compared with prior art, display device provided by the invention and preparation method thereof at least realizes following beneficial Effect:

Display device include first bending region, first bending region in glass substrate curvature R1 be it is minimum, i.e., For R1<Rx, in other words, first bending region in glass substrate bending degree it is larger, first bending region in glass base Plate is more bent compared with other regions.The refractive index N of glass substrate in first bending regionj1It is larger, in the first bending region The refractive index N of glass substratej1With differing greatly for the refractive index of the glass substrate in other regions.In order to avoid in display device, The luminance difference in the first bending region and other regions, in display device provided by the invention, glass cover-plate is close to curved-surface display The side of panel is provided with refracting layer.The glass substrate for being provided with refracting layer is glass cover-plate, the glass in the first bending region The refractive index of cover board is the first glass cover-plate refractive index Ng1, and Ng1<Nj1, as, in the first bending region, it is provided with refracting layer The refractive index of glass cover-plate afterwards is smaller, larger without the refractive index of glass cover-plate of refracting layer is arranged.Therefore, it is provided with folding It penetrates in the glass cover-plate of layer, the reduction of the refractive index in the first bending region, to reduce in display device the first bending region and its The luminance difference in his region.

In addition to this, since curved face display panel and glass cover-plate fit, as, in the first bending region, curved surface Display panel is also bent accordingly, thus the refractive index of the first bending region mean camber display panel is compared with other region biggers.Hair In the display device of bright offer, N is setg1< Ngx, as, the refractive index N of the glass cover-plate in the first bending regiong1Minimum, with The larger refractive index of balance the first bending region mean camber display panel, to further decrease the first bending in display device The luminance difference in region and other regions promotes the homogeneity of the brightness of display device, improves display quality.

Certainly, implementing any of the products of the present invention specific needs while must not reach all the above technique effect.

By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and its Advantage will become apparent.

Description of the drawings

It is combined in the description and the attached drawing of a part for constitution instruction shows the embodiment of the present invention, and even With its explanation together principle for explaining the present invention.

Fig. 1 is the cross-sectional view of the display device described in the prior art;

Fig. 2 is a kind of cross-sectional view of display device provided in an embodiment of the present invention;

Fig. 3 is the cross-sectional view of another display device provided in an embodiment of the present invention;

Fig. 4 is the cross-sectional view of another display device provided in an embodiment of the present invention;

Fig. 5 is the cross-sectional view of another display device provided in an embodiment of the present invention;

Fig. 6 is the cross-sectional view of the polarizer of another display device provided in an embodiment of the present invention;

Fig. 7 is a kind of flow chart of the production method of display device provided in an embodiment of the present invention;

Fig. 7 a~Fig. 7 f are the cross-sectional views for the corresponding display device of production method that Fig. 7 is provided.

Specific implementation mode

Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should be noted that:Unless in addition having Body illustrates that the unlimited system of component and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally The range of invention.

It is illustrative to the description only actually of at least one exemplary embodiment below, is never used as to the present invention And its application or any restrictions that use.

Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable In the case of, the technology, method and apparatus should be considered as part of specification.

In shown here and discussion all examples, any occurrence should be construed as merely illustrative, without It is as limitation.Therefore, other examples of exemplary embodiment can have different values.

It should be noted that:Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi It is defined, then it need not be further discussed in subsequent attached drawing in a attached drawing.

Referring to FIG. 2, Fig. 2 is a kind of cross-sectional view of display device provided in an embodiment of the present invention.The present invention Embodiment provides a kind of display device 100, including:Curved face display panel 11 and the glass to fit with curved face display panel Cover board 12;Glass cover-plate 12 includes glass substrate 13 and refracting layer 14, and refracting layer 14 is located at glass cover-plate 12 close to curved-surface display The side of panel 11;Display device 100 includes the curvature of the glass substrate 13 in the first bending region C1, the first bending region C1 Curvature for first curvature R1, any region of the glass substrate 13 in addition to the first bending region C1 is Rx, R1 < Rx;First bending The refractive index of glass substrate 13 in the C1 of region is the first glass substrate refractive index Nj1, first is bent the glass cover-plate in the C1 of region 12 refractive index is the first glass cover-plate refractive index Ng1, wherein Ng1<Nj1;The appointing in addition to the first bending region C1 of glass cover-plate 12 The refractive index in one region is Ngx, Ng1< Ngx

As shown in Fig. 2, glass cover-plate 12 includes glass substrate 13 and refracting layer 14, it is that display device 100, which has curvature, The first bending region C1, light L of one curvature R1 is first by the refractive index of glass substrate 13 in the first bending region C1 Glass substrate refractive index Nj1, light L is N by the refractive index of glass cover-plate 12 in the first bending region C1g1, light L is in song It is N to pass through the refractive index of glass cover-plate 12 in the region that rate is Rxgx, and meet Ng1<Nj1, Ng1< Ngx

That is, display device 100 includes the glass substrate 13 in the first bending region C1, the first bending region C1 Curvature R1 is minimum, as R1<Rx, in other words, the bending degree of the glass substrate 13 in the first bending region C1 is larger, the Glass substrate 13 in one bending region C1 is more bent compared with other regions.The folding of glass substrate 13 in first bending region C1 Penetrate rate Nj1It is larger, the refractive index N of the glass substrate 13 in the first bending region C1j1With the folding of the glass substrate 13 in other regions Penetrate differing greatly for rate.In order to avoid in display device 100, first is bent the luminance difference of region C1 and other regions, this hair In the display device 100 of bright offer, glass cover-plate 12 is provided with refracting layer 14 close to the side of curved face display panel 11.It is provided with The glass substrate 13 of refracting layer 14 is glass cover-plate 12, and the refractive index of the glass cover-plate 12 in the first bending region C1 is the first glass Glass cover board refractive index Ng1, and Ng1<Nj1, as, in the first bending region C1, it is provided with the glass cover-plate 12 after refracting layer 14 Refractive index is smaller, larger without the refractive index of glass substrate 13 of refracting layer 14 is arranged.Therefore, it is provided with the glass of refracting layer 14 In glass cover board 12, the refractive index of the first bending region C1 reduces, to reduce in display device 100 first bending region C1 and other The luminance difference in region.

In addition to this, since curved face display panel 11 and glass cover-plate 12 fit, as, region C1 is bent first In, the also corresponding bending of curved face display panel 11, thus the refractive index of the first bending region C1 mean cambers display panel 11 is compared with it His region bigger.In display device 100 provided in this embodiment, N is setg1< Ngx, as, the glass in the first bending region C1 The refractive index N of glass cover board 12g1Minimum is bent the larger refractive index of region C1 mean cambers display panel 11 with balance first, from And the luminance difference of the first bending region C1 and other regions in display device 100 is further decreased, promote display device 100 The homogeneity of brightness improves display quality.

Optionally, referring to FIG. 2, refracting layer 14 includes coating birefringent material layer and/or attaching refracting film layer.Specifically, Coating birefringent material layer refers to that refracting layer 14 can be coated with the folding of different refractivity by different regions on glass substrate 13 It penetrates material and realizes the different function of different location refractive index;Attaching refracting film layer refers to, by the refraction film with specific refractive index It is pasted to glass substrate 13 and realizes reflective functions.It, can be according to different application scenarios and need in concrete implementation mode Ask the material and production method of selective refraction layer.Wherein, refracting layer 14 is transparent thin-film material, and the present invention is to the material specifically chosen Material is not limited.

Optionally, referring to FIG. 3, Fig. 3 is the cross-section structure signal of another display device provided in an embodiment of the present invention Figure.For the clearer technical characteristic for illustrating the embodiment of the present invention, Fig. 3 is by the curved face display panel 11 and glass cover-plate of fitting 12 are separately drawn, and the practical structures of curved face display panel 11 and glass cover-plate 12 are bonded to each other.As shown in figure 3, the In one bending region C1, the thickness of curved face display panel 11 is Dp1, the refractive index of curved face display panel 11 is Np1, glass cover-plate 12 thickness is dg1, and in any region in addition to the first bending region C1, the thickness of curved face display panel is Dx1, curved-surface display The refractive index of panel 11 is Nx1, the thickness of glass cover-plate 12 is dx1, Np1*Dp1+Ng1* dg1=Nx1*Dx1+Ngx*dx1。

Known light transmits in different media has different refractive index, is rolled in the embodiment of the present invention for ease of calculation The refractive index for penetrating layer 14, is incorporated herein the concept of light path, and light path refers to that the distance that light is propagated in the medium is converted into light in vacuum The value of the corresponding distance of middle propagation, light path is multiplied by the distance that light is propagated in the medium equal to medium refraction index.In the present embodiment, show Showing device 100 is N in the light path value of the first bending region C1 mean cambers display panel 11p1*Dp1, the light path value of glass cover-plate 12 For Ng1*dg1;It is N in the light path value of other region mean camber display panels 11x1*Dx1, the light path value of glass cover-plate 12 is Ngx* dx1.When the light path value of the first bending region C1 and other regions reach unanimity, the brightness of display device 100 also tends to unanimously. Optionally so that be bent the sum of light path value of region C1 mean cambers display panel 11 and the light path value of glass cover-plate 12 etc. first In the sum of the light path value of light path value and glass cover-plate 12 in other region mean camber display panels 11, i.e. Np1*Dp1+Ng1*dg1 =Nx1*Dx1+Ngx* dx1 so that the light path value of the first bending region C1 and the light path value in other regions are consistent, and promote first It is bent the brightness uniformity of region C1 and other regions, to improve the display performance of display device 100.

Optionally, referring to FIG. 4, Fig. 4 is the cross-section structure signal of another display device provided in an embodiment of the present invention Figure, for the clearer technical characteristic for illustrating the embodiment of the present invention, Fig. 4 is by the curved face display panel 11 and glass cover-plate of fitting 12 are separately drawn, and the practical structures of curved face display panel 11 and glass cover-plate 12 are bonded to each other.As shown in figure 4, bent Face display panel 11 includes the array substrate 17 being oppositely arranged and color membrane substrates 15, and array substrate 17 includes the first underlay substrate 18, color membrane substrates 15 include the second underlay substrate 19.In first bending region C1, the thickness of the first underlay substrate 18 is d11, the The refractive index of one underlay substrate 18 is Nt11, the thickness of the second underlay substrate 19 is d12, and the refractive index of the second underlay substrate 19 is Nt12, the thickness of glass cover-plate 12 is dg1, in any region in addition to the first bending region C1, the thickness of the first underlay substrate 18 Refractive index for dx11, the first underlay substrate 18 is Ntx1, the thickness of the second underlay substrate 19 is dx22, the second underlay substrate 19 Refractive index be Ntx2, the thickness of glass cover-plate 12 is dx1, wherein Nt11*d11+Nt12*d12+Ng1* dg1=Ntx1*dx11+ Ntx2*dx22+Ngx*dx1。

In the present embodiment, display device 100 is bent in the C1 of region the first underlay substrate 18 in array substrate 17 first Light path value is Nt11* d11, the light path value of the second underlay substrate is N on color membrane substrates 15t12* d12, the light path value of glass cover-plate 12 For Ng1*dg1;In other regions, the light path value of first underlay substrate 18 is N in array substrate 17tx1* dx11, color membrane substrates 15 The light path value of upper second underlay substrate is Ntx2* the light path value of dx22, glass cover-plate 12 are Ngx*dx1.As the first bending region C1 When reaching unanimity with the light path value in other regions, the brightness of display device 100 also tends to unanimously.Optionally so that curved first The sum of light path value of 12 three of array substrate 17, color membrane substrates 15 and glass cover-plate is equal in other regions in bent region C1 The sum of the light path value of 12 three of array substrate 17, color membrane substrates 15 and glass cover-plate so that the light path of the first bending region C1 Value and the light path value in other regions are consistent, and the brightness uniformity of the first bending region C1 and other regions are promoted, to carry The display performance of high display device 100.

Optionally, referring to FIG. 4, curved face display panel 11 further includes liquid crystal layer 22.

Optionally, referring to FIG. 5, Fig. 5 is the cross-section structure signal of another display device provided in an embodiment of the present invention Figure, for the clearer technical characteristic for illustrating the embodiment of the present invention, Fig. 5 is by the curved face display panel 11 and glass cover-plate of fitting 12 are separately drawn, and the practical structures of curved face display panel 11 and glass cover-plate 12 are bonded to each other.First underlay substrate 18 and second underlay substrate 19 be flexible base board.Flexible base board is usually light-weight, thickness is thin, the polyamides of soft flexible is sub- High molecular materials, the present invention such as amine plastics, polyether-ether-ketone or electrically conducting transparent terylene are not particularly limited this.Use flexible base board The first underlay substrate 18 and the second underlay substrate 19 are made, curved face display panel can be made to be readily bent, bend.

Optionally, referring to FIG. 5, curved face display panel 11 further includes liquid crystal layer 22.

Optionally, the polarizer that Fig. 5-Fig. 6, Fig. 6 are another display devices provided in an embodiment of the present invention is please referred to Cross-sectional view.Display device 100 further includes the first polarizer 20 and the second polarizer 21, and the clamping of the first polarizer 20 is set It sets between glass cover-plate 12 and color membrane substrates 15, the side of the first polarizer 20 passes through 12 phase of pressure-sensitive adhesive layer 26 and glass cover-plate Fitting, the other side are fitted by optical adhesive layer 27 and color membrane substrates 15 away from the side of array substrate 17;Second polarizer 21 Side fitted away from the side of color membrane substrates 15 by pressure-sensitive adhesive layer 26 and array substrate 17.It is carried using the embodiment of the present invention The stacked structure of confession can be effectively improved the first polarizer 20 and the second polarizer 21 in the process for making curved face display panel 11 The middle stress deformation caused by being bent external force improves display device 100 to reduce quadrangle light leakage when display panel dark-state Display performance.

Optionally, referring to FIG. 6, the first polarizer 20, the second polarizer 21 respectively include:First protective layer 23;Polarisation Base 24, polarisation base 24 cover the first protective layer 23;Second protective layer 25, the second protective layer 25 cover polarisation base 24;Pressure Quick glue-line 26, pressure-sensitive adhesive layer 26 cover the second protective layer 25.In the first polarizer 20, the second polarizer 21, plays polarization and make It is polarisation base 24, but polarisation base 24 is easy to happen hydrolysis, in order to protect the physical characteristic of polarizer, needs inclined Each compound one layer of the both sides of light base 24 have the protective film of certain mechanical strength to carry out again with high light transmission rate, water-tolerant Protection, the first protective layer 23, the second protective layer 25 as in the embodiment of the present invention.According to the use demand of the present embodiment, also It needs to coat certain thickness pressure-sensitive adhesive layer 26 in the side of the first polarizer 20 and the second polarizer 21 to complete to attach.

Optionally, incorporated by reference to reference to figure 6- Fig. 7, Fig. 7 a~7f, a kind of Fig. 7 display devices provided in an embodiment of the present invention The flow chart of production method, Fig. 7 a~7f are the diagrammatic cross-sections for the corresponding display device of production method that Fig. 7 is provided.The present invention Embodiment also provides a kind of production method of display device, as follows:

Step S1:Curved face display panel 11 is provided;

Specifically, referring to Fig. 7 a, curved face display panel 11 is provided, curved face display panel 11 has the first bending region C1。

Step S2:Glass substrate 13 is provided;

Specifically, referring to Fig. 7 b, glass substrate 13 is provided, glass substrate 13 also has the first bending region C1.It needs Illustrate, glass substrate 13 can also be what other flexible materials made in the embodiment of the present invention, such as use plastic production It forms, the present invention is not specifically limited this.

Step S3:Refracting layer 14 is set to form glass cover-plate 12 in a side surface of glass substrate 13;Display device 10 Curvature including the glass substrate 13 in the first bending region C1, the first bending region C1 is first curvature R1, the first buckled zone The curvature of glass substrate 13 in the C1 of domain is less than the curvature of the glass substrate 13 in remaining region;

Specifically, Fig. 7 c are referred to, in glass substrate 13 close to the side of display panel 11 setting refracting layer 14 to be formed Glass cover-plate 12.The curvature of glass substrate 13 in first bending region C1 is first curvature R1, and first is bent in the C1 of region The curvature of glass substrate 13 is less than the curvature of the glass substrate 13 in remaining region, i.e., the first bending region C1 on glass substrate 13 Crooked radian be more than remaining region crooked radian.

Step S4:The refractive index of glass substrate 13 in first bending region C1 is the first glass substrate refractive index Nj1, the The refractive index of glass cover-plate 12 in one bending region is the first glass cover-plate refractive index Ng1, wherein Ng1<Nj1

Specifically, referring to Fig. 7 c, the refractive index of the glass substrate 13 in the first bending region C1 is the first glass substrate Refractive index Nj1, the first refractive index for being bent the glass cover-plate 12 in region is the first glass cover-plate refractive index Ng1, wherein Ng1< Nj1, i.e., first is bent the refractive index N of the glass substrate 13 in the C1 of regionj1It is larger, the glass substrate 13 in the first bending region C1 Refractive index Nj1With differing greatly for the refractive index of the glass substrate 13 in other regions.In order to avoid in display device 100, first It is bent the luminance difference of region C1 and other regions, glass cover-plate 12 is provided with refracting layer close to the side of curved face display panel 11 14.The glass substrate 13 for being provided with refracting layer 14 is glass cover-plate 12, the refraction of the glass cover-plate 12 in the first bending region C11 Rate is the first glass cover-plate refractive index Ng1, and Ng1<Nj1, that is to say, that in the first bending region C1, after being provided with refracting layer 14 Glass cover-plate 12 refractive index it is smaller, without be arranged refracting layer 14 glass substrate 13 refractive index it is larger.Therefore, it is arranged Have in the glass cover-plate 13 of refracting layer 14, the refractive index of the first bending region C1 reduces, curved to reduce in display device 100 first The luminance difference of bent region C1 and other regions.

Step S5:The side that refracting layer 14 is provided in glass cover-plate 12 attaches the first polarizer 20 to form the first cover board 12’;

Specifically, referring to Fig. 7 d, curved face display panel 11 has liquid crystal layer 22, between refracting layer 14 and liquid crystal layer 22 First polarizer 20 is set, the first cover board 12 ' is formed.

Step S6:It is bonded the first cover board 12 ' and curved face display panel 11;

Specifically, incorporated by reference to referring to Fig. 7 e and Fig. 6, the first cover board 12 ' and curved face display panel 11 are bonded, first The side of the first polarizer 20 on cover board 12 ' is fitted by pressure-sensitive adhesive layer 26 and glass cover-plate 12, and the other side passes through optics Glue-line 27 and color membrane substrates 15 fit away from the side of array substrate 17.

Step S7:In curved face display panel 11 the second polarizer 21 is bonded away from a side surface of glass cover-plate 12.

Specifically, incorporated by reference to referring to Fig. 7 f and Fig. 6, pasted away from a side surface of glass cover-plate 12 in curved face display panel 11 The second polarizer 21 is closed, the side of the second polarizer 21 deviates from the one of color membrane substrates 15 by pressure-sensitive adhesive layer 26 and array substrate 17 Side fits.

In production method provided in this embodiment, since curved face display panel 11 and glass cover-plate 12 fit, as, In first bending region C1, the also corresponding bending of curved face display panel 11, thus the first bending region C1 mean camber display panels 11 refractive index is compared with other region biggers.In display device 100 provided in this embodiment, N is setg1< Ngx, as, first is curved The refractive index N of glass cover-plate 12 in bent region C1g1Minimum, with balance first bending region C1 mean cambers display panel 11 compared with Big refractive index is promoted to further decrease the luminance difference of the first bending region C1 and other regions in display device 100 The homogeneity of the brightness of display device 100 improves display quality.

Using above-mentioned the first polarizer 20 is attached in the side of glass cover-plate 12, in the fitting of the side of curved face display panel 11 The structure of second polarizer 21 can be effectively improved the first polarizer 20 and the second polarizer 21 and make curved face display panel 11 During the stress deformation caused by being bent external force improve display to reduce quadrangle light leakage when display panel dark-state The display performance of device 100.

Optionally, Fig. 7 c are please referred to, setting refracting layer 14 is included in glass substrate 13 in a side surface of glass substrate 13 A side surface coating birefringent material layer and/or attach refracting film layer.Specifically, coating birefringent material layer refers to refracting layer 14 The refractive material that different refractivity can be coated with by different regions on glass substrate 13 realizes reflective functions;Attach refraction Film layer refers to that the refraction film with specific refractive index is made to be pasted to the realization reflective functions of glass substrate 13.Specific real It, can be according to different application scenarios and the material and production method of demand selective refraction layer in existing mode.Wherein, refracting layer 14 be transparent thin-film material, and the present invention is not limited the material specifically chosen.

By above-described embodiment it is found that display device provided by the invention and preparation method thereof, at least realizes following Advantageous effect:

Display device include first bending region, first bending region in glass substrate curvature R1 be it is minimum, i.e., For R1<Rx, in other words, first bending region in glass substrate bending degree it is larger, first bending region in glass base Plate is more bent compared with other regions.The refractive index N of glass substrate in first bending regionj1It is larger, in the first bending region The refractive index N of glass substratej1With differing greatly for the refractive index of the glass substrate in other regions.In order to avoid in display device, The luminance difference in the first bending region and other regions, in display device provided by the invention, glass cover-plate is close to curved-surface display The side of panel is provided with refracting layer.The glass substrate for being provided with refracting layer is glass cover-plate, the glass in the first bending region The refractive index of cover board is the first glass cover-plate refractive index Ng1, and Ng1<Nj1, as, in the first bending region, it is provided with refracting layer The refractive index of glass cover-plate afterwards is smaller, larger without the refractive index of glass substrate of refracting layer is arranged.Therefore, it is provided with folding It penetrates in the glass cover-plate of layer, the reduction of the refractive index in the first bending region, to reduce in display device the first bending region and its The luminance difference in his region.

In addition to this, since curved face display panel and glass cover-plate fit, as, in the first bending region, curved surface Display panel is also bent accordingly, thus the refractive index of the first bending region mean camber display panel is compared with other region biggers.Hair In the display device of bright offer, N is setg1< Ngx, as, the refractive index N of the glass cover-plate in the first bending regiong1Minimum, with The larger refractive index of balance the first bending region mean camber display panel, to further decrease the first bending in display device The luminance difference in region and other regions promotes the homogeneity of the brightness of display device, improves display quality.

Display device in the present invention further includes the first polarizer and the second polarizer, and the first polarizer is held and mounted on glass Between glass cover board and color membrane substrates, the side of the first polarizer is fitted by pressure-sensitive adhesive layer and glass cover-plate, the other side passes through Optical adhesive layer and color membrane substrates fit away from the side of array substrate, and the side of the second polarizer passes through pressure-sensitive adhesive layer and array Substrate fits away from the side of color membrane substrates, and the first polarizer and the second polarisation can be effectively improved using above-mentioned stacked structure Plate stress deformation caused by being bent external force during making curved face display panel, when to reduce display panel dark-state Quadrangle light leakage, improve the display performance of display device.

Although some specific embodiments of the present invention are described in detail by example, the skill of this field Art personnel it should be understood that example above merely to illustrating, the range being not intended to be limiting of the invention.The skill of this field Art personnel are it should be understood that can without departing from the scope and spirit of the present invention modify to above example.This hair Bright range is defined by the following claims.

Claims (9)

1. a kind of display device, which is characterized in that including:
Curved face display panel and the glass cover-plate to fit with the curved face display panel;
The glass cover-plate includes glass substrate and refracting layer, and it is aobvious close to the curved surface that the refracting layer is located at the glass cover-plate Show the side of panel;
The display device includes the first bending region, and the curvature of the glass substrate in first bending region is first Curvature R1, the glass substrate are Rx, R1 < Rx except the curvature of the overseas any region of the first buckled zone;
The refractive index of the glass substrate in first bending region is the first glass substrate refractive index Nj1, described first is curved The refractive index of the glass cover-plate in bent region is the first glass cover-plate refractive index Ng1, wherein Ng1<Nj1
The glass cover-plate is N except the refractive index of the overseas any region of the first buckled zonegx, Ng1< Ngx
2. display device according to claim 1, which is characterized in that the refracting layer include coating birefringent material layer and/ Or attach refracting film layer.
3. display device according to claim 1, which is characterized in that
In first bending region, the thickness of the curved face display panel is Dp1, the refractive index of the curved face display panel is Np1, the thickness of the glass cover-plate is dg1;
Except in the overseas any region of first buckled zone, the thickness of the curved face display panel is Dx1, the curved-surface display The refractive index of panel is Nx1, the thickness of the glass cover-plate is dx1;
Np1*Dp1+Ng1* dg1=Nx1*Dx1+Ngx*dx1。
4. display device according to claim 1, which is characterized in that
The curved face display panel includes the array substrate being oppositely arranged and color membrane substrates, and the array substrate includes the first substrate Substrate, the color membrane substrates include the second underlay substrate;
In first bending region, the thickness of first underlay substrate is d11, and the refractive index of first underlay substrate is Nt11, the thickness of second underlay substrate is d12, and the refractive index of second underlay substrate is Nt12, the glass cover-plate Thickness is dg1;
Except in the overseas any region of first buckled zone, the thickness of first underlay substrate is dx11, first lining The refractive index of substrate is Ntx1, the thickness of second underlay substrate is dx22, and the refractive index of second underlay substrate is Ntx2, the thickness of the glass cover-plate is dx1;
Wherein, Nt11*d11+Nt12*d12+Ng1* dg1=Ntx1*dx11+Ntx2*dx22+Ngx*dx1。
5. display device according to claim 4, which is characterized in that
First underlay substrate and second underlay substrate are flexible base board.
6. display device according to claim 4, which is characterized in that
The display device further includes:First polarizer and the second polarizer;
First polarizer is held and mounted between the glass cover-plate and the color membrane substrates, and the one of first polarizer Side is fitted by pressure-sensitive adhesive layer and the glass cover-plate, the other side deviates from the battle array by optical adhesive layer and the color membrane substrates The side of row substrate fits;The side of second polarizer is by pressure-sensitive adhesive layer and the array substrate away from the color film The side of substrate fits.
7. display device according to claim 6, which is characterized in that first polarizer, second polarizer point Do not include:
First protective layer;
Polarisation base, the polarisation base cover first protective layer;
Second protective layer, second protective layer cover the polarisation base;
Pressure-sensitive adhesive layer, the pressure-sensitive adhesive layer cover second protective layer.
8. a kind of production method of display device, which is characterized in that including:
Curved face display panel is provided;
Glass substrate is provided;
Refracting layer is set to form glass cover-plate in a side surface of the glass substrate;The display device includes the first bending Region, the described first curvature for being bent the glass substrate in region is first curvature R1, and described first is bent in region The curvature of the glass substrate is less than the curvature of the glass substrate in remaining region;
The refractive index of the glass substrate in first bending region is the first glass substrate refractive index Nj1, described first is curved The refractive index of the glass cover-plate in bent region is the first glass cover-plate refractive index Ng1, wherein Ng1<Nj1
The side that the refracting layer is provided in the glass cover-plate attaches the first polarizer to form the first cover board;
It is bonded first cover board and the curved face display panel;
In the curved face display panel the second polarizer is bonded away from a side surface of the glass cover-plate.
9. production method according to claim 8, which is characterized in that
It is described to include in a side surface of glass substrate setting refracting layer:
It is coated with refractive material or fitting refraction film in a side surface of the glass substrate.
CN201810394780.0A 2018-04-27 2018-04-27 Display device and preparation method thereof CN108663840A (en)

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